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  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Windows.Forms;
  9.  
  10. namespace WindowsFormsApplication1
  11. {
  12.     public partial class Form1 : Form
  13.     {
  14.         public Form1()
  15.         {
  16.             InitializeComponent();
  17.         }
  18.         List<MyData> data = new List<MyData>();
  19.         List<MyData> data0 = new List<MyData>();
  20.         List<MyData> data1 = new List<MyData>();
  21.         List<MyData> data2 = new List<MyData>();
  22.         Button b;
  23.         private void Form1_Load(object sender, EventArgs e)
  24.         {
  25.             data.Clear();
  26.             data0.Clear();
  27.             data1.Clear();
  28.             data2.Clear();
  29.             for (int i = 0; i < 30000; i++)
  30.             {
  31.                 MyData d = new MyData();
  32.                 d.hogehoe = i;
  33.                 data.Add(d);
  34.                 if (i < 10000)
  35.                 {
  36.                     data0.Add(d);
  37.                 }
  38.                 else if (i < 20000)
  39.                 {
  40.                     data1.Add(d);
  41.                 }
  42.                 else
  43.                 {
  44.                     data2.Add(d);
  45.                 }
  46.             }
  47.             b = new Button();
  48.             b.Text = "実行";
  49.             b.Click += new EventHandler(b_Click);
  50.             this.Controls.Add(b);
  51.         }
  52.  
  53.         void b_Click(object sender, EventArgs e)
  54.         {
  55.             b.Enabled = false;
  56.             int i = 29999;
  57.             MyData aheahe;
  58.             if (i < 10000)
  59.             {
  60.                 aheahe = this.datafind(data0, i);
  61.             }
  62.             else if (i < 20000)
  63.             {
  64.                 aheahe = this.datafind(data1, i);
  65.             }
  66.             else
  67.             {
  68.                 aheahe = this.datafind(data2, i);
  69.             }
  70.             if (aheahe != null) this.Text = aheahe.hogehoe.ToString();
  71.             b.Enabled = true;
  72.         }
  73.         MyData datafind(List<MyData> kkkkkkkk, int number)
  74.         {
  75.             MyData mmmm = null;
  76.             foreach (MyData md in kkkkkkkk)
  77.             {
  78.                 if (md.hogehoe == number)
  79.                 {
  80.                     mmmm = md;
  81.                     break;
  82.                 }
  83.             }
  84.             return mmmm;
  85.         }
  86.     }
  87.     public class MyData
  88.     {
  89.         public int hogehoe;
  90.     }
  91. }
  92.  
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https://ideone.com/hljwH
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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